Chemistry

1. The C-O-C bond angle (degees) in the compound CH3-O-CH3 is closest to
a. 90
b. 109
c. 120
d. 180


2. Which of the following molecules would be expected to be MOST water soluble?
a. CH3-CH2-CH2-CH2-CH3
b. CH3-CH2-O-CH2-CH3
c. HOCH2-CH2-CH2OH
d. ClCH2-CH2-CH2Cl

3.  The relationship between CH3CH2OH and HOCH2CH3 is best described as
a. constitutional isomers
b. geometric isomers
c. unrelated compounds
d. same compound

4. The structure of urea is shown below.The carbon atom in urea is:
O=C(NH2) 2

a. sp3 hybridized
b. sp2 hybridized
c. sp hybridized
d. sp3d hybridized